Vehicle bumper



FIG. 1 is a perspective view of a vehicle bumper showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view of one side thereof;

FIG. 4 is a side elevational view of the opposite side thereof; and,

FIG. 5 is a top plan view thereof.

The broken line showings of the rectangle in the central region and the pair of trapezoids form no part of the claimed design. 

The ornamental design for a vehicle bumper, as shown and described. 